I can't comment for sure, as I haven't been there since December and haven't heard anything official. but, AKL has been open for about a year now. My bet is that the situation stems from INS problems. Generally H1-B visa's (work visa's) are good for one year interval's. Before the end of that year, the non-resident alien needs to either have their employer reapply for a new visa, or they need to have won a green card lottery, or they need to leave the country. They can generally stay in the country for up to thirty days at the end of the visa as a tourist, depending on their country of citizenship, however they are not permitted to work during this time, and are supposed to let the INS know of their intent to remain for an additional period as a tourist.
Generally from the time a H1-B visa is applied for and the time it is granted takes up to five months. The quickest I've seen them approved is for an alien already employed in the USA, and renewing the H1-B, and that was about six weeks.
H1-B's are not free. Although it's not absolutely nessecary, generally the application process is handled by an attorney. The average cost to prepare an application and pay the filing fee is somewhere between $2-5K.
My bet is that after September 11, two things happened. First, the INS tightened the application process for non-permanent resident aliens (the H1-B and F-1 Visa's in particular). The process now takes longer from start to finish. I also suspect that when business really dropped off, Disney evaluated areas where they could cut costs. One of these areas would most definitely have been the International program.
Even if they reconsidered after business began to pick back up, it's most likely that they would not have had the time to process the needed paperwork with the INS to keep the cast from the International program here working after their visa's ran out.
In all honesty, the most likely scenario is that the Lodge International program cast were only signed on for one year to begin with, which is the standard contract. After September 11, Disney decided to hold off on a replacement crew until business picked back up. Once business did pick back up, theyw ere behind the ball because of the time it took to get the paperwork in place.
I also want to mention that a great many cast members who are US citizens or permenant resident aliens (green card holders) were furloughed after September 11. Disney is morally if not also legally obligated (not sure on the laws on this in the US, in Canada they would be legally obligated as well) to fill existing vacancies with furloughed cast before they fill the vacancies with alien's.
My guess is that if business remains strong, we will see Disney's International program back in place as it always has been. It's a wonderful opportunity, not just for the cast, but also for the guests in order to meet the cast and learn about the different cultures of the world. I wish that they would have kept the Millenium Village open for just this reason, although that cost a small fortune to run, not in the exhibits themselves, but in the cost of casting it.
Anne